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Sergio039 [100]

4 years ago

8

−13π/5 find the reference angle

1 answer:

miss Akunina [59]4 years ago

8 0

I would convert to degrees first seems to make it easier.
$\frac{-13 \pi }{5}$ × $\frac{180}{ \pi }$
= -468
by adding 360 twice we get the coterminal angle 252

252 is in the 3rd quadrant so 180 is the closest angle on the x-axis
ref angle = 252 - 180 = 72

If necessary convert back to radians... $72( \frac{ \pi }{180} )= \frac{2 \pi }{5}$

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3 years ago

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abruzzese [7]

Answer:

The coordinate of $Z$ is 13.36.

Step-by-step explanation:

According to the statement, we have the following information:

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<h2></h2><h2>Given that</h2>

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<h3>We have to determine</h3>

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<h3>According to the question</h3>

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$\rm Circumference = 2\pi r$

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\\
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\\
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Hence, the length of the radius of circle o is 18 cm.

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brainly.com/question/4268218

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